ctbigdata.com - robtex.com
ctbigdata.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 168.76.60.99🇿🇦 ASLINE-AS-AP168.76.60.0/24 Proxy-registered route object | ||||||
| NS | ns1.julydns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns1.onclouddns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.onclouddns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | ns1.julydns.commaster@jmdns.com serial=1777516807 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1784839162 | ||||||
Same first word
ctbigdata.com |
Similar names
DNS History
19 records (5 active, 14 former)
○NSdns21.hichina.com2026-03-31 → 2026-04-13 · 5 obs
● 2026-03-31 06:54:28
● 2026-04-13 10:52:56
○ 2026-04-26 00:51:28
○ 2026-07-23 20:48:08
○NSdns22.hichina.com2026-03-31 → 2026-04-13 · 5 obs
● 2026-03-31 06:54:28
● 2026-04-13 10:52:56
○ 2026-04-26 00:51:28
○ 2026-07-23 20:48:08
○NSdns31.hichina.com2015-08-22 → 2020-11-24 · 4 obs
● 2020-11-24 16:21:50
○ 2026-02-23 02:49:34
○ 2026-07-23 20:48:08
○NSdns32.hichina.com2015-08-22 → 2020-11-24 · 4 obs
● 2020-11-24 16:21:50
○ 2026-02-23 02:49:34
○ 2026-07-23 20:48:08
○NSexpirens3.hichina.com2026-03-31 → 2026-04-13 · 5 obs
● 2026-03-31 06:54:28
● 2026-04-13 10:52:56
○ 2026-04-26 00:51:28
○ 2026-07-23 20:48:08
○NSexpirens4.hichina.com2026-03-31 → 2026-04-13 · 5 obs
● 2026-03-31 06:54:28
● 2026-04-13 10:52:56
○ 2026-04-26 00:51:28
○ 2026-07-23 20:48:08
○NSns1.judns.com2026-02-23 → 2026-03-28 · 5 obs
● 2026-02-23 02:49:34
● 2026-03-28 00:31:18
○ 2026-03-31 06:54:28
○ 2026-07-23 20:48:08
●NSns1.julydns.com2026-02-23 → 2026-07-23 · 7 obs
● 2026-02-23 02:49:34
● 2026-03-28 00:31:18
○ 2026-03-31 06:54:28
○ 2026-04-13 10:52:56
● 2026-04-26 00:51:28
● 2026-07-23 20:48:08
●NSns1.onclouddns.com2026-04-26 → 2026-07-23 · 3 obs
● 2026-04-26 00:51:28
● 2026-07-23 20:48:08
○NSns2.judns.com2026-02-23 → 2026-03-28 · 5 obs
● 2026-02-23 02:49:34
● 2026-03-28 00:31:18
○ 2026-03-31 06:54:28
○ 2026-07-23 20:48:08
●NSns2.julydns.com2026-02-23 → 2026-07-23 · 7 obs
● 2026-02-23 02:49:34
● 2026-03-28 00:31:18
○ 2026-03-31 06:54:28
○ 2026-04-13 10:52:56
● 2026-04-26 00:51:28
● 2026-07-23 20:48:08
●NSns2.onclouddns.com2026-04-26 → 2026-07-23 · 3 obs
● 2026-04-26 00:51:28
● 2026-07-23 20:48:08
○A106.39.224.1592015-08-22 → 2016-07-05 · 4 obs
● 2016-07-05 08:14:38
○ 2017-03-22 06:31:06
○ 2026-07-23 20:48:08
○A106.39.231.322017-03-22 → 2017-03-22 · 4 obs
● 2017-03-22 06:31:06
○ 2020-11-24 16:21:50
○ 2026-07-23 20:48:08
○A168.76.254.2392026-04-26 → 2026-04-26 · 4 obs
● 2026-04-26 00:51:28
○ 2026-05-01 04:00:02
○ 2026-07-23 20:48:08
●A168.76.60.992026-05-01 → 2026-07-23 · 3 obs
● 2026-05-01 04:00:02
● 2026-07-23 20:48:08
○A47.76.69.652026-02-23 → 2026-03-01 · 5 obs
● 2026-02-23 02:49:34
● 2026-03-01 19:26:14
○ 2026-03-27 22:40:40
○ 2026-07-23 20:48:08
○A8.210.38.332026-03-27 → 2026-03-28 · 5 obs
● 2026-03-27 22:40:40
● 2026-03-28 00:31:18
○ 2026-03-31 06:54:28
○ 2026-07-23 20:48:08
○CNAMEexpired.hichina.com2026-03-31 → 2026-04-13 · 4 obs
● 2026-04-13 10:52:56
○ 2026-04-26 00:51:28
○ 2026-07-23 20:48:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net... | - |
| ctbigdata.com | ns1.onclouddns.com, ns2.onclouddns.com | 2 records |
✅ Authoritative Response
Server:162.159.27.251
NS records: ns1.onclouddns.com, ns2.onclouddns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctbigdata.com (unsigned zone)
⏱️ Timing
Total: 363ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 168.76.60.99 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.onclouddns.com, ns2.onclouddns.com)
Analysis
IP Addresses
ctbigdata.com resolves to one IP address: 168.76.60.99.
cgeggnn.cn, voicelabs.cn, cjkf120.com and two other host names share IP numbers with ctbigdata.com.
Name Servers
The authoritative name servers for ctbigdata.com are ns1.julydns.com, ns2.julydns.com, ns1.onclouddns.com and ns2.onclouddns.com.
ctbigdata.com has at least partial name server overlap with other domains, such as dogandcatmeds.com, lxrk.com, cxzdq.cn and two others.
It is common to see these name servers used together with name servers ns1.judns.com and ns2.judns.com.
Four host names each point to one IP address: ns1.julydns.com and ns2.julydns.com both point to 162.159.48.223, and ns1.onclouddns.com and ns2.onclouddns.com both point to 162.159.27.251.
These two host names — ns1.julydns.com and ns2.julydns.com — each point to 162.159.48.223 IP addresses.
These two host names — ns1.onclouddns.com and ns2.onclouddns.com — each point to 162.159.27.251 IP addresses.